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Muhammad Usman
Muhammad Usman

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Full-Stack 3-Tier Web Application Deployment on AWS

As a developer, understanding how to deploy full-stack applications in the cloud is a critical skill. In this guide, I demonstrate how to build and deploy a 3-tier web application using React, Flask, and PostgreSQL, hosted entirely on AWS.

This project covers:

  1. Frontend: React application for user interaction
  2. Backend: Flask REST API to handle database operations
  3. Database: PostgreSQL hosted on AWS RDS
  4. Hosting: AWS S3 for static frontend and Elastic Beanstalk for backend

What You’ll Learn:

  • Setting up PostgreSQL locally and on AWS RDS
  • Running Flask backend locally and creating APIs (/add, /list, /delete)
  • Running React frontend locally and connecting it with Flask
  • Deploying Flask backend on Elastic Beanstalk
  • Deploying React frontend on S3 static website
  • Configuring AWS security groups, permissions, and IMDS
  • Connecting frontend and backend in the cloud to make a fully functional web application

This tutorial is hands-on and developer-focused, giving you practical experience from local development to cloud deployment.

💡 Watch the complete developer-friendly tutorial here:
Deploy 3-Tier React + Flask Web Application on AWS

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